Table 2.

Percentage of patients achieving adequate control of heartburn in each treatment arm during week before 2, 4, and 8 week visits

Visit	Placebo (n=159)	Cisapride (n=163)	Omeprazole (n=161)	P value*
2 weeks	15	21	59	<0.0001
4 weeks (95% CI)	18 (12.0 to 24.4)	22 (15.4 to 28.6)	71 (63.8 to 78.4)	<0.0001
8 weeks	30	40	76	<0.0001

Six patients who were prematurely withdrawn but reported adequate control of heartburn are included: omeprazole (3), cisapride (2), placebo (1). 

^*Omeprazole v cisapride or placebo.